nand/raw/fsl_ifc_nand.c

16 #include <linux/mtd/mtd.h>
17 #include <linux/mtd/rawnand.h>
18 #include <linux/mtd/partitions.h>
29 /* mtd information per set */
84 static int fsl_ifc_ooblayout_ecc(struct mtd_info *mtd, int section,
87 	struct nand_chip *chip = mtd_to_nand(mtd);
98 static int fsl_ifc_ooblayout_free(struct mtd_info *mtd, int section,
101 	struct nand_chip *chip = mtd_to_nand(mtd);
106 	if (mtd->writesize == 512 &&
124 		oobregion->length = mtd->oobsize - oobregion->offset;
139 static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
141 	struct nand_chip *chip = mtd_to_nand(mtd);
154 	ifc_nand_ctrl->addr = priv->vbase + buf_num * (mtd->writesize * 2);
159 		ifc_nand_ctrl->index += mtd->writesize;
163 static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl,
172 static void fsl_ifc_run_command(struct mtd_info *mtd)
174 	struct nand_chip *chip = mtd_to_nand(mtd);
225 			errors = check_read_ecc(mtd, ctrl, eccstat, i);
240 			mtd->ecc_stats.corrected += errors;
252 			    struct mtd_info *mtd)
259 	if (mtd->writesize > 512) {
293 	struct mtd_info *mtd = nand_to_mtd(chip);
307 		set_addr(mtd, 0, page_addr, 0);
309 		ifc_nand_ctrl->read_bytes = mtd->writesize + mtd->oobsize;
315 		fsl_ifc_do_read(chip, 0, mtd);
316 		fsl_ifc_run_command(mtd);
321 		ifc_out32(mtd->oobsize - column, &ifc->ifc_nand.nand_fbcr);
322 		set_addr(mtd, column, page_addr, 1);
324 		ifc_nand_ctrl->read_bytes = mtd->writesize + mtd->oobsize;
326 		fsl_ifc_do_read(chip, 1, mtd);
327 		fsl_ifc_run_command(mtd);
355 		set_addr(mtd, 0, 0, 0);
356 		fsl_ifc_run_command(mtd);
362 		set_addr(mtd, 0, page_addr, 0);
378 		fsl_ifc_run_command(mtd);
387 		if (mtd->writesize > 512) {
427 			if (column >= mtd->writesize)
435 		if (column >= mtd->writesize) {
437 			column -= mtd->writesize;
441 		set_addr(mtd, column, page_addr, ifc_nand_ctrl->oob);
455 		fsl_ifc_run_command(mtd);
468 		set_addr(mtd, 0, 0, 0);
471 		fsl_ifc_run_command(mtd);
490 		fsl_ifc_run_command(mtd);
511 	struct mtd_info *mtd = nand_to_mtd(chip);
513 	unsigned int bufsize = mtd->writesize + mtd->oobsize;
606 	struct mtd_info *mtd = nand_to_mtd(chip);
620 	set_addr(mtd, 0, 0, 0);
623 	fsl_ifc_run_command(mtd);
640 	struct mtd_info *mtd = nand_to_mtd(chip);
647 	mtd_ooblayout_ecc(mtd, 0, &oobregion);
655 			mtd->ecc_stats.failed++;
657 			mtd->ecc_stats.corrected += res;
670 	struct mtd_info *mtd = nand_to_mtd(chip);
675 	nand_read_page_op(chip, page, 0, buf, mtd->writesize);
677 		fsl_ifc_read_buf(chip, chip->oob_poi, mtd->oobsize);
681 			fsl_ifc_read_buf(chip, chip->oob_poi, mtd->oobsize);
687 		mtd->ecc_stats.failed++;
698 	struct mtd_info *mtd = nand_to_mtd(chip);
700 	nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize);
701 	fsl_ifc_write_buf(chip, chip->oob_poi, mtd->oobsize);
708 	struct mtd_info *mtd = nand_to_mtd(chip);
719 		mtd_set_ooblayout(mtd, &fsl_ifc_ooblayout_ops);
759 	dev_dbg(priv->dev, "%s: mtd->ooblayout = %p\n", __func__,
760 							mtd->ooblayout);
761 	dev_dbg(priv->dev, "%s: mtd->flags = %08x\n", __func__, mtd->flags);
762 	dev_dbg(priv->dev, "%s: mtd->size = %lld\n", __func__, mtd->size);
763 	dev_dbg(priv->dev, "%s: mtd->erasesize = %d\n", __func__,
764 							mtd->erasesize);
765 	dev_dbg(priv->dev, "%s: mtd->writesize = %d\n", __func__,
766 							mtd->writesize);
767 	dev_dbg(priv->dev, "%s: mtd->oobsize = %d\n", __func__,
768 							mtd->oobsize);
860 	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
865 	mtd->dev.parent = priv->dev;
953 	struct mtd_info *mtd = nand_to_mtd(&priv->chip);
955 	kfree(mtd->name);
990 	struct mtd_info *mtd;
1063 	mtd = nand_to_mtd(&priv->chip);
1064 	mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start);
1065 	if (!mtd->name) {
1081 	ret = mtd_device_parse_register(mtd, part_probe_types, NULL, NULL, 0);